What it is: A luxurious overnight nourishing leave-in serum formulated with niacinamide that nourishes, hydrates, detangles, and enhances shine in 8 hours.Hair Texture: Straight, Wavy, Curly, and CoilyHair Type: Fine, Medium, and ThickHair Concerns:- Dryness- Shine- Damage, Split Ends, and Breakage